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<FONT color="green">001</FONT>    package org.hackystat.sensorbase.resource.sensordatatypes;<a name="line.1"></a>
<FONT color="green">002</FONT>    <a name="line.2"></a>
<FONT color="green">003</FONT>    import static org.hackystat.sensorbase.server.ServerProperties.XML_DIR_KEY;<a name="line.3"></a>
<FONT color="green">004</FONT>    <a name="line.4"></a>
<FONT color="green">005</FONT>    import java.io.File;<a name="line.5"></a>
<FONT color="green">006</FONT>    import java.io.StringReader;<a name="line.6"></a>
<FONT color="green">007</FONT>    import java.io.StringWriter;<a name="line.7"></a>
<FONT color="green">008</FONT>    import java.util.HashMap;<a name="line.8"></a>
<FONT color="green">009</FONT>    import java.util.Map;<a name="line.9"></a>
<FONT color="green">010</FONT>    <a name="line.10"></a>
<FONT color="green">011</FONT>    import javax.xml.bind.JAXBContext;<a name="line.11"></a>
<FONT color="green">012</FONT>    import javax.xml.bind.Marshaller;<a name="line.12"></a>
<FONT color="green">013</FONT>    import javax.xml.bind.Unmarshaller;<a name="line.13"></a>
<FONT color="green">014</FONT>    import javax.xml.parsers.DocumentBuilder;<a name="line.14"></a>
<FONT color="green">015</FONT>    import javax.xml.parsers.DocumentBuilderFactory;<a name="line.15"></a>
<FONT color="green">016</FONT>    import javax.xml.transform.Transformer;<a name="line.16"></a>
<FONT color="green">017</FONT>    import javax.xml.transform.TransformerFactory;<a name="line.17"></a>
<FONT color="green">018</FONT>    import javax.xml.transform.dom.DOMSource;<a name="line.18"></a>
<FONT color="green">019</FONT>    import javax.xml.transform.stream.StreamResult;<a name="line.19"></a>
<FONT color="green">020</FONT>    <a name="line.20"></a>
<FONT color="green">021</FONT>    import org.hackystat.sensorbase.resource.sensordatatypes.jaxb.SensorDataType;<a name="line.21"></a>
<FONT color="green">022</FONT>    import org.hackystat.sensorbase.resource.sensordatatypes.jaxb.SensorDataTypeIndex;<a name="line.22"></a>
<FONT color="green">023</FONT>    import org.hackystat.sensorbase.resource.sensordatatypes.jaxb.SensorDataTypeRef;<a name="line.23"></a>
<FONT color="green">024</FONT>    import org.hackystat.sensorbase.resource.sensordatatypes.jaxb.SensorDataTypes;<a name="line.24"></a>
<FONT color="green">025</FONT>    import org.hackystat.sensorbase.server.Server;<a name="line.25"></a>
<FONT color="green">026</FONT>    import org.hackystat.sensorbase.db.DbManager;<a name="line.26"></a>
<FONT color="green">027</FONT>    import org.hackystat.utilities.stacktrace.StackTrace;<a name="line.27"></a>
<FONT color="green">028</FONT>    import org.hackystat.utilities.tstamp.Tstamp;<a name="line.28"></a>
<FONT color="green">029</FONT>    import org.w3c.dom.Document;<a name="line.29"></a>
<FONT color="green">030</FONT>    <a name="line.30"></a>
<FONT color="green">031</FONT>    /**<a name="line.31"></a>
<FONT color="green">032</FONT>     * Provides a manager for the SensorDataType resource.<a name="line.32"></a>
<FONT color="green">033</FONT>     * As with all of the Resource managers the methods in this class can be grouped into <a name="line.33"></a>
<FONT color="green">034</FONT>     * three general categories, of which this Manager uses the following:<a name="line.34"></a>
<FONT color="green">035</FONT>     * &lt;ul&gt;<a name="line.35"></a>
<FONT color="green">036</FONT>     * &lt;li&gt; Database access methods (get*, has*, put*, delete*):  these methods communicate with the <a name="line.36"></a>
<FONT color="green">037</FONT>     * underlying storage system (or cache). <a name="line.37"></a>
<FONT color="green">038</FONT>     * &lt;li&gt; XML/Java translation methods (make*): these methods translate between the XML String<a name="line.38"></a>
<FONT color="green">039</FONT>     * representation of a resource and its Java class instance representation. <a name="line.39"></a>
<FONT color="green">040</FONT>     * &lt;/ul&gt;<a name="line.40"></a>
<FONT color="green">041</FONT>     * &lt;p&gt;  <a name="line.41"></a>
<FONT color="green">042</FONT>     * See https://jaxb.dev.java.net/guide/Performance_and_thread_safety.html for info <a name="line.42"></a>
<FONT color="green">043</FONT>     * on JAXB performance and thread safety.<a name="line.43"></a>
<FONT color="green">044</FONT>     * &lt;p&gt;<a name="line.44"></a>
<FONT color="green">045</FONT>     * All public methods of this class are synchronized so that we can maintain the cache along with<a name="line.45"></a>
<FONT color="green">046</FONT>     * the underlying persistent store in a thread-safe fashion.<a name="line.46"></a>
<FONT color="green">047</FONT>     * <a name="line.47"></a>
<FONT color="green">048</FONT>     * @author Philip Johnson<a name="line.48"></a>
<FONT color="green">049</FONT>     *<a name="line.49"></a>
<FONT color="green">050</FONT>     */<a name="line.50"></a>
<FONT color="green">051</FONT>    public class SdtManager {<a name="line.51"></a>
<FONT color="green">052</FONT>      <a name="line.52"></a>
<FONT color="green">053</FONT>      /** Holds the class-wide JAXBContext, which is thread-safe. */<a name="line.53"></a>
<FONT color="green">054</FONT>      private JAXBContext jaxbContext;<a name="line.54"></a>
<FONT color="green">055</FONT>      <a name="line.55"></a>
<FONT color="green">056</FONT>      /** The Server associated with this SdtManager. */<a name="line.56"></a>
<FONT color="green">057</FONT>      Server server; <a name="line.57"></a>
<FONT color="green">058</FONT>      <a name="line.58"></a>
<FONT color="green">059</FONT>      /** The DbManager associated with this server. */<a name="line.59"></a>
<FONT color="green">060</FONT>      DbManager dbManager;<a name="line.60"></a>
<FONT color="green">061</FONT>      <a name="line.61"></a>
<FONT color="green">062</FONT>      /** The SensorDataTypeIndex open tag. */<a name="line.62"></a>
<FONT color="green">063</FONT>      public static final String sensorDataTypeIndexOpenTag = "&lt;SensorDataTypeIndex&gt;";<a name="line.63"></a>
<FONT color="green">064</FONT>      <a name="line.64"></a>
<FONT color="green">065</FONT>      /** The SensorDataTypeIndex close tag. */<a name="line.65"></a>
<FONT color="green">066</FONT>      public static final String sensorDataTypeIndexCloseTag = "&lt;/SensorDataTypeIndex&gt;";<a name="line.66"></a>
<FONT color="green">067</FONT>      <a name="line.67"></a>
<FONT color="green">068</FONT>      /** An in-memory cache mapping SDT names to their corresponding instance. */<a name="line.68"></a>
<FONT color="green">069</FONT>      private Map&lt;String, SensorDataType&gt; name2sdt = new HashMap&lt;String, SensorDataType&gt;();<a name="line.69"></a>
<FONT color="green">070</FONT>      <a name="line.70"></a>
<FONT color="green">071</FONT>      /** An in-memory cache mapping a SensorDataType instance to its SensorDataType XML string. */<a name="line.71"></a>
<FONT color="green">072</FONT>      private Map&lt;SensorDataType, String&gt; sdt2xml = new HashMap&lt;SensorDataType, String&gt;();<a name="line.72"></a>
<FONT color="green">073</FONT>      <a name="line.73"></a>
<FONT color="green">074</FONT>      /** An in-memory cache mapping a SensorDataType instance to its SensorDataTypeRef XML string. */<a name="line.74"></a>
<FONT color="green">075</FONT>      private Map&lt;SensorDataType, String&gt; sdt2ref = new HashMap&lt;SensorDataType, String&gt;();<a name="line.75"></a>
<FONT color="green">076</FONT>      <a name="line.76"></a>
<FONT color="green">077</FONT>      <a name="line.77"></a>
<FONT color="green">078</FONT>      /** <a name="line.78"></a>
<FONT color="green">079</FONT>       * The constructor for SdtManagers. Loads in default data and sets up the in-memory caches. <a name="line.79"></a>
<FONT color="green">080</FONT>       * @param server The Server instance associated with this SdtManager. <a name="line.80"></a>
<FONT color="green">081</FONT>       */<a name="line.81"></a>
<FONT color="green">082</FONT>      public SdtManager(Server server) {<a name="line.82"></a>
<FONT color="green">083</FONT>        this.server = server;<a name="line.83"></a>
<FONT color="green">084</FONT>        this.dbManager = (DbManager)this.server.getContext().getAttributes().get("DbManager");<a name="line.84"></a>
<FONT color="green">085</FONT>        try {<a name="line.85"></a>
<FONT color="green">086</FONT>          this.jaxbContext = <a name="line.86"></a>
<FONT color="green">087</FONT>            JAXBContext.newInstance(<a name="line.87"></a>
<FONT color="green">088</FONT>                org.hackystat.sensorbase.resource.sensordatatypes.jaxb.ObjectFactory.class);<a name="line.88"></a>
<FONT color="green">089</FONT>          loadDefaultSensorDataTypes(); //NOPMD it's throwing a false warning. <a name="line.89"></a>
<FONT color="green">090</FONT>          initializeCache();            //NOPMD <a name="line.90"></a>
<FONT color="green">091</FONT>        }<a name="line.91"></a>
<FONT color="green">092</FONT>        catch (Exception e) {<a name="line.92"></a>
<FONT color="green">093</FONT>          String msg = "Exception during SdtManager initialization processing";<a name="line.93"></a>
<FONT color="green">094</FONT>          server.getLogger().warning(msg + "\n" + StackTrace.toString(e));<a name="line.94"></a>
<FONT color="green">095</FONT>          throw new RuntimeException(msg, e);<a name="line.95"></a>
<FONT color="green">096</FONT>        }<a name="line.96"></a>
<FONT color="green">097</FONT>      }<a name="line.97"></a>
<FONT color="green">098</FONT>    <a name="line.98"></a>
<FONT color="green">099</FONT>      /**<a name="line.99"></a>
<FONT color="green">100</FONT>       * Loads the default SensorDataTypes from the defaults file. <a name="line.100"></a>
<FONT color="green">101</FONT>       * @throws Exception If problems occur. <a name="line.101"></a>
<FONT color="green">102</FONT>       */<a name="line.102"></a>
<FONT color="green">103</FONT>      private void loadDefaultSensorDataTypes() throws Exception {<a name="line.103"></a>
<FONT color="green">104</FONT>        // Get the default SDT definitions from the XML defaults file. <a name="line.104"></a>
<FONT color="green">105</FONT>        File defaultsFile = findDefaultsFile();<a name="line.105"></a>
<FONT color="green">106</FONT>        // Initialize the SDTs if we've found a default file. <a name="line.106"></a>
<FONT color="green">107</FONT>        if (defaultsFile.exists()) {<a name="line.107"></a>
<FONT color="green">108</FONT>          server.getLogger().info("Loading SDT defaults from " + defaultsFile.getPath()); <a name="line.108"></a>
<FONT color="green">109</FONT>          Unmarshaller unmarshaller = jaxbContext.createUnmarshaller();<a name="line.109"></a>
<FONT color="green">110</FONT>          SensorDataTypes sensorDataTypes = (SensorDataTypes) unmarshaller.unmarshal(defaultsFile);<a name="line.110"></a>
<FONT color="green">111</FONT>          for (SensorDataType sdt : sensorDataTypes.getSensorDataType()) {<a name="line.111"></a>
<FONT color="green">112</FONT>            sdt.setLastMod(Tstamp.makeTimestamp());<a name="line.112"></a>
<FONT color="green">113</FONT>            this.dbManager.storeSensorDataType(sdt, this.makeSensorDataType(sdt), <a name="line.113"></a>
<FONT color="green">114</FONT>                this.makeSensorDataTypeRefString(sdt));<a name="line.114"></a>
<FONT color="green">115</FONT>          }<a name="line.115"></a>
<FONT color="green">116</FONT>        }<a name="line.116"></a>
<FONT color="green">117</FONT>      }<a name="line.117"></a>
<FONT color="green">118</FONT>      <a name="line.118"></a>
<FONT color="green">119</FONT>      /**<a name="line.119"></a>
<FONT color="green">120</FONT>       * Read the SDTs from the underlying database and initialize the in-memory cache.<a name="line.120"></a>
<FONT color="green">121</FONT>       */<a name="line.121"></a>
<FONT color="green">122</FONT>      private void initializeCache() {<a name="line.122"></a>
<FONT color="green">123</FONT>        try {<a name="line.123"></a>
<FONT color="green">124</FONT>          SensorDataTypeIndex index = makeSensorDataTypeIndex(this.dbManager.getSensorDataTypeIndex());<a name="line.124"></a>
<FONT color="green">125</FONT>          for (SensorDataTypeRef ref : index.getSensorDataTypeRef()) {<a name="line.125"></a>
<FONT color="green">126</FONT>            String sdtName = ref.getName();<a name="line.126"></a>
<FONT color="green">127</FONT>            String sdtString = this.dbManager.getSensorDataType(sdtName);<a name="line.127"></a>
<FONT color="green">128</FONT>            SensorDataType sdt = makeSensorDataType(sdtString);<a name="line.128"></a>
<FONT color="green">129</FONT>            String sdtRef = this.makeSensorDataTypeRefString(sdt);<a name="line.129"></a>
<FONT color="green">130</FONT>            this.name2sdt.put(sdtName, sdt);<a name="line.130"></a>
<FONT color="green">131</FONT>            this.sdt2ref.put(sdt, sdtRef);<a name="line.131"></a>
<FONT color="green">132</FONT>            this.sdt2xml.put(sdt, sdtString);<a name="line.132"></a>
<FONT color="green">133</FONT>          }<a name="line.133"></a>
<FONT color="green">134</FONT>        }<a name="line.134"></a>
<FONT color="green">135</FONT>        catch (Exception e) {<a name="line.135"></a>
<FONT color="green">136</FONT>          server.getLogger().warning("Failed to initialize SDTs " + StackTrace.toString(e));<a name="line.136"></a>
<FONT color="green">137</FONT>        }<a name="line.137"></a>
<FONT color="green">138</FONT>      }<a name="line.138"></a>
<FONT color="green">139</FONT>      <a name="line.139"></a>
<FONT color="green">140</FONT>      /**<a name="line.140"></a>
<FONT color="green">141</FONT>       * Checks the ServerProperties for the XML_DIR property.<a name="line.141"></a>
<FONT color="green">142</FONT>       * If this property is null, returns the File for ./xml/defaults/sensordatatypes.defaults.xml.<a name="line.142"></a>
<FONT color="green">143</FONT>       * @return The File instance (which might not point to an existing file.)<a name="line.143"></a>
<FONT color="green">144</FONT>       */<a name="line.144"></a>
<FONT color="green">145</FONT>      private File findDefaultsFile() {<a name="line.145"></a>
<FONT color="green">146</FONT>        String defaultsPath = "/defaults/sensordatatypes.defaults.xml";<a name="line.146"></a>
<FONT color="green">147</FONT>        String xmlDir = server.getServerProperties().get(XML_DIR_KEY);<a name="line.147"></a>
<FONT color="green">148</FONT>        return (xmlDir == null) ?<a name="line.148"></a>
<FONT color="green">149</FONT>            new File (System.getProperty("user.dir") + "/xml" + defaultsPath) :<a name="line.149"></a>
<FONT color="green">150</FONT>              new File (xmlDir + defaultsPath);<a name="line.150"></a>
<FONT color="green">151</FONT>      }<a name="line.151"></a>
<FONT color="green">152</FONT>    <a name="line.152"></a>
<FONT color="green">153</FONT>    <a name="line.153"></a>
<FONT color="green">154</FONT>      /**<a name="line.154"></a>
<FONT color="green">155</FONT>       * Returns the XML string containing the SensorDataTypeIndex with all defined SDTs.<a name="line.155"></a>
<FONT color="green">156</FONT>       * Uses the in-memory cache of SensorDataTypeRef strings.  <a name="line.156"></a>
<FONT color="green">157</FONT>       * @return The XML string providing an index to all current SDTs.<a name="line.157"></a>
<FONT color="green">158</FONT>       */<a name="line.158"></a>
<FONT color="green">159</FONT>      public synchronized String getSensorDataTypeIndex() {<a name="line.159"></a>
<FONT color="green">160</FONT>        StringBuilder builder = new StringBuilder(512);<a name="line.160"></a>
<FONT color="green">161</FONT>        builder.append(sensorDataTypeIndexOpenTag);<a name="line.161"></a>
<FONT color="green">162</FONT>        for (String ref : this.sdt2ref.values()) {<a name="line.162"></a>
<FONT color="green">163</FONT>          builder.append(ref);<a name="line.163"></a>
<FONT color="green">164</FONT>        }<a name="line.164"></a>
<FONT color="green">165</FONT>        builder.append(sensorDataTypeIndexCloseTag);<a name="line.165"></a>
<FONT color="green">166</FONT>        return builder.toString();<a name="line.166"></a>
<FONT color="green">167</FONT>      }<a name="line.167"></a>
<FONT color="green">168</FONT>      <a name="line.168"></a>
<FONT color="green">169</FONT>      /**<a name="line.169"></a>
<FONT color="green">170</FONT>       * Returns the XML String representation of a SensorDataType, given its name.  <a name="line.170"></a>
<FONT color="green">171</FONT>       * @param sdtName The name of the SDT. <a name="line.171"></a>
<FONT color="green">172</FONT>       * @return Its string representation, or null if not found. <a name="line.172"></a>
<FONT color="green">173</FONT>       */<a name="line.173"></a>
<FONT color="green">174</FONT>      public synchronized String getSensorDataTypeString(String sdtName) {<a name="line.174"></a>
<FONT color="green">175</FONT>        SensorDataType sdt = this.name2sdt.get(sdtName);<a name="line.175"></a>
<FONT color="green">176</FONT>        return (sdt == null) ? null : this.sdt2xml.get(sdt);<a name="line.176"></a>
<FONT color="green">177</FONT>      }<a name="line.177"></a>
<FONT color="green">178</FONT>      <a name="line.178"></a>
<FONT color="green">179</FONT>      /**<a name="line.179"></a>
<FONT color="green">180</FONT>       * Updates the Manager with this SDT. Any old definition with this name is overwritten.<a name="line.180"></a>
<FONT color="green">181</FONT>       * Updates in-memory caches and persistent store. <a name="line.181"></a>
<FONT color="green">182</FONT>       * @param sdt The SensorDataType.<a name="line.182"></a>
<FONT color="green">183</FONT>       */<a name="line.183"></a>
<FONT color="green">184</FONT>      public synchronized void putSdt(SensorDataType sdt) {<a name="line.184"></a>
<FONT color="green">185</FONT>        try {<a name="line.185"></a>
<FONT color="green">186</FONT>          sdt.setLastMod(Tstamp.makeTimestamp());<a name="line.186"></a>
<FONT color="green">187</FONT>          String sdtString = this.makeSensorDataType(sdt);<a name="line.187"></a>
<FONT color="green">188</FONT>          String sdtRefString = this.makeSensorDataTypeRefString(sdt);<a name="line.188"></a>
<FONT color="green">189</FONT>          this.dbManager.storeSensorDataType(sdt, sdtString, sdtRefString);<a name="line.189"></a>
<FONT color="green">190</FONT>          this.name2sdt.put(sdt.getName(), sdt);<a name="line.190"></a>
<FONT color="green">191</FONT>          this.sdt2ref.put(sdt, sdtRefString);<a name="line.191"></a>
<FONT color="green">192</FONT>          this.sdt2xml.put(sdt, sdtString);<a name="line.192"></a>
<FONT color="green">193</FONT>        }<a name="line.193"></a>
<FONT color="green">194</FONT>        catch (Exception e) {<a name="line.194"></a>
<FONT color="green">195</FONT>          server.getLogger().warning("Failed to put SDT" + StackTrace.toString(e));<a name="line.195"></a>
<FONT color="green">196</FONT>        }<a name="line.196"></a>
<FONT color="green">197</FONT>      }<a name="line.197"></a>
<FONT color="green">198</FONT>      <a name="line.198"></a>
<FONT color="green">199</FONT>      /**<a name="line.199"></a>
<FONT color="green">200</FONT>       * Returns true if the passed SDT name is defined. <a name="line.200"></a>
<FONT color="green">201</FONT>       * @param sdtName A SensorDataType name<a name="line.201"></a>
<FONT color="green">202</FONT>       * @return True if a SensorDataType with that name is already known to this SdtManager.<a name="line.202"></a>
<FONT color="green">203</FONT>       */<a name="line.203"></a>
<FONT color="green">204</FONT>      public synchronized boolean hasSdt(String sdtName) {<a name="line.204"></a>
<FONT color="green">205</FONT>        return this.name2sdt.containsKey(sdtName);<a name="line.205"></a>
<FONT color="green">206</FONT>      }<a name="line.206"></a>
<FONT color="green">207</FONT>      <a name="line.207"></a>
<FONT color="green">208</FONT>      /**<a name="line.208"></a>
<FONT color="green">209</FONT>       * Ensures that the passed sdtName is no longer present in this Manager. <a name="line.209"></a>
<FONT color="green">210</FONT>       * @param sdtName The name of the SDT to remove if currently present.<a name="line.210"></a>
<FONT color="green">211</FONT>       */<a name="line.211"></a>
<FONT color="green">212</FONT>      public synchronized void deleteSdt(String sdtName) {<a name="line.212"></a>
<FONT color="green">213</FONT>        SensorDataType sdt = this.name2sdt.get(sdtName);<a name="line.213"></a>
<FONT color="green">214</FONT>        if (sdt != null) {<a name="line.214"></a>
<FONT color="green">215</FONT>          this.name2sdt.remove(sdtName);<a name="line.215"></a>
<FONT color="green">216</FONT>          this.sdt2ref.remove(sdt);<a name="line.216"></a>
<FONT color="green">217</FONT>          this.sdt2xml.remove(sdt);<a name="line.217"></a>
<FONT color="green">218</FONT>        }<a name="line.218"></a>
<FONT color="green">219</FONT>        this.dbManager.deleteSensorDataType(sdtName);<a name="line.219"></a>
<FONT color="green">220</FONT>      }<a name="line.220"></a>
<FONT color="green">221</FONT>      <a name="line.221"></a>
<FONT color="green">222</FONT>      /**<a name="line.222"></a>
<FONT color="green">223</FONT>       * Takes a String encoding of a SensorDataType in XML format and converts it to an instance. <a name="line.223"></a>
<FONT color="green">224</FONT>       * <a name="line.224"></a>
<FONT color="green">225</FONT>       * @param xmlString The XML string representing a SensorDataType<a name="line.225"></a>
<FONT color="green">226</FONT>       * @return The corresponding SensorDataType instance. <a name="line.226"></a>
<FONT color="green">227</FONT>       * @throws Exception If problems occur during unmarshalling.<a name="line.227"></a>
<FONT color="green">228</FONT>       */<a name="line.228"></a>
<FONT color="green">229</FONT>      public final synchronized SensorDataType makeSensorDataType(String xmlString) throws Exception {<a name="line.229"></a>
<FONT color="green">230</FONT>        Unmarshaller unmarshaller = this.jaxbContext.createUnmarshaller();<a name="line.230"></a>
<FONT color="green">231</FONT>        return (SensorDataType)unmarshaller.unmarshal(new StringReader(xmlString));<a name="line.231"></a>
<FONT color="green">232</FONT>      }<a name="line.232"></a>
<FONT color="green">233</FONT>      <a name="line.233"></a>
<FONT color="green">234</FONT>      /**<a name="line.234"></a>
<FONT color="green">235</FONT>       * Takes a String encoding of a SensorDataTypeIndex in XML format and converts it to an instance. <a name="line.235"></a>
<FONT color="green">236</FONT>       * Note that this does not affect the state of any SdtManager instance. <a name="line.236"></a>
<FONT color="green">237</FONT>       * <a name="line.237"></a>
<FONT color="green">238</FONT>       * @param xmlString The XML string representing a SensorDataTypeIndex.<a name="line.238"></a>
<FONT color="green">239</FONT>       * @return The corresponding SensorDataTypeIndex instance. <a name="line.239"></a>
<FONT color="green">240</FONT>       * @throws Exception If problems occur during unmarshalling.<a name="line.240"></a>
<FONT color="green">241</FONT>       */<a name="line.241"></a>
<FONT color="green">242</FONT>      public final synchronized SensorDataTypeIndex makeSensorDataTypeIndex(String xmlString) <a name="line.242"></a>
<FONT color="green">243</FONT>      throws Exception {<a name="line.243"></a>
<FONT color="green">244</FONT>        Unmarshaller unmarshaller = this.jaxbContext.createUnmarshaller();<a name="line.244"></a>
<FONT color="green">245</FONT>        return (SensorDataTypeIndex)unmarshaller.unmarshal(new StringReader(xmlString));<a name="line.245"></a>
<FONT color="green">246</FONT>      }<a name="line.246"></a>
<FONT color="green">247</FONT>      <a name="line.247"></a>
<FONT color="green">248</FONT>      /**<a name="line.248"></a>
<FONT color="green">249</FONT>       * Returns the passed SensorDataType instance as a String encoding of its XML representation.<a name="line.249"></a>
<FONT color="green">250</FONT>       * Final because it's called in constructor.<a name="line.250"></a>
<FONT color="green">251</FONT>       * @param sdt The SensorDataType instance. <a name="line.251"></a>
<FONT color="green">252</FONT>       * @return The XML String representation.<a name="line.252"></a>
<FONT color="green">253</FONT>       * @throws Exception If problems occur during translation. <a name="line.253"></a>
<FONT color="green">254</FONT>       */<a name="line.254"></a>
<FONT color="green">255</FONT>      public final synchronized String makeSensorDataType (SensorDataType sdt) throws Exception {<a name="line.255"></a>
<FONT color="green">256</FONT>        Marshaller marshaller = jaxbContext.createMarshaller(); <a name="line.256"></a>
<FONT color="green">257</FONT>        DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance();<a name="line.257"></a>
<FONT color="green">258</FONT>        dbf.setNamespaceAware(true);<a name="line.258"></a>
<FONT color="green">259</FONT>        DocumentBuilder documentBuilder = dbf.newDocumentBuilder();<a name="line.259"></a>
<FONT color="green">260</FONT>        Document doc = documentBuilder.newDocument();<a name="line.260"></a>
<FONT color="green">261</FONT>        marshaller.marshal(sdt, doc);<a name="line.261"></a>
<FONT color="green">262</FONT>        DOMSource domSource = new DOMSource(doc);<a name="line.262"></a>
<FONT color="green">263</FONT>        StringWriter writer = new StringWriter();<a name="line.263"></a>
<FONT color="green">264</FONT>        StreamResult result = new StreamResult(writer);<a name="line.264"></a>
<FONT color="green">265</FONT>        TransformerFactory tf = TransformerFactory.newInstance();<a name="line.265"></a>
<FONT color="green">266</FONT>        Transformer transformer = tf.newTransformer();<a name="line.266"></a>
<FONT color="green">267</FONT>        transformer.transform(domSource, result);<a name="line.267"></a>
<FONT color="green">268</FONT>        String xmlString = writer.toString();<a name="line.268"></a>
<FONT color="green">269</FONT>        // Now remove the processing instruction.  This approach seems like a total hack.<a name="line.269"></a>
<FONT color="green">270</FONT>        xmlString = xmlString.substring(xmlString.indexOf('&gt;') + 1);<a name="line.270"></a>
<FONT color="green">271</FONT>        return xmlString;<a name="line.271"></a>
<FONT color="green">272</FONT>      }<a name="line.272"></a>
<FONT color="green">273</FONT>    <a name="line.273"></a>
<FONT color="green">274</FONT>      /**<a name="line.274"></a>
<FONT color="green">275</FONT>       * Returns the passed SensorDataType instance as a String encoding of its XML representation <a name="line.275"></a>
<FONT color="green">276</FONT>       * as a SensorDataTypeRef object.<a name="line.276"></a>
<FONT color="green">277</FONT>       * Final because it's called in constructor.<a name="line.277"></a>
<FONT color="green">278</FONT>       * @param sdt The SensorDataType instance. <a name="line.278"></a>
<FONT color="green">279</FONT>       * @return The XML String representation of it as a SensorDataTypeRef<a name="line.279"></a>
<FONT color="green">280</FONT>       * @throws Exception If problems occur during translation. <a name="line.280"></a>
<FONT color="green">281</FONT>       */<a name="line.281"></a>
<FONT color="green">282</FONT>      public final synchronized String makeSensorDataTypeRefString (SensorDataType sdt) <a name="line.282"></a>
<FONT color="green">283</FONT>      throws Exception {<a name="line.283"></a>
<FONT color="green">284</FONT>        SensorDataTypeRef ref = makeSensorDataTypeRef(sdt);<a name="line.284"></a>
<FONT color="green">285</FONT>        Marshaller marshaller = jaxbContext.createMarshaller(); <a name="line.285"></a>
<FONT color="green">286</FONT>        DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance();<a name="line.286"></a>
<FONT color="green">287</FONT>        dbf.setNamespaceAware(true);<a name="line.287"></a>
<FONT color="green">288</FONT>        DocumentBuilder documentBuilder = dbf.newDocumentBuilder();<a name="line.288"></a>
<FONT color="green">289</FONT>        Document doc = documentBuilder.newDocument();<a name="line.289"></a>
<FONT color="green">290</FONT>        marshaller.marshal(ref, doc);<a name="line.290"></a>
<FONT color="green">291</FONT>        DOMSource domSource = new DOMSource(doc);<a name="line.291"></a>
<FONT color="green">292</FONT>        StringWriter writer = new StringWriter();<a name="line.292"></a>
<FONT color="green">293</FONT>        StreamResult result = new StreamResult(writer);<a name="line.293"></a>
<FONT color="green">294</FONT>        TransformerFactory tf = TransformerFactory.newInstance();<a name="line.294"></a>
<FONT color="green">295</FONT>        Transformer transformer = tf.newTransformer();<a name="line.295"></a>
<FONT color="green">296</FONT>        transformer.transform(domSource, result);<a name="line.296"></a>
<FONT color="green">297</FONT>        String xmlString = writer.toString();<a name="line.297"></a>
<FONT color="green">298</FONT>        // Now remove the processing instruction.  This approach seems like a total hack.<a name="line.298"></a>
<FONT color="green">299</FONT>        xmlString = xmlString.substring(xmlString.indexOf('&gt;') + 1);<a name="line.299"></a>
<FONT color="green">300</FONT>        return xmlString;<a name="line.300"></a>
<FONT color="green">301</FONT>      }<a name="line.301"></a>
<FONT color="green">302</FONT>      <a name="line.302"></a>
<FONT color="green">303</FONT>      /**<a name="line.303"></a>
<FONT color="green">304</FONT>       * Returns a SensorDataTypeRef instance constructed from a SensorDataType instance.<a name="line.304"></a>
<FONT color="green">305</FONT>       * @param sdt The SensorDataType instance. <a name="line.305"></a>
<FONT color="green">306</FONT>       * @return A SensorDataTypeRef instance. <a name="line.306"></a>
<FONT color="green">307</FONT>       */<a name="line.307"></a>
<FONT color="green">308</FONT>      public synchronized SensorDataTypeRef makeSensorDataTypeRef(SensorDataType sdt) {<a name="line.308"></a>
<FONT color="green">309</FONT>        SensorDataTypeRef ref = new SensorDataTypeRef();<a name="line.309"></a>
<FONT color="green">310</FONT>        ref.setName(sdt.getName());<a name="line.310"></a>
<FONT color="green">311</FONT>        ref.setHref(this.server.getHostName() + "sensordatatypes/" + sdt.getName()); <a name="line.311"></a>
<FONT color="green">312</FONT>        return ref;<a name="line.312"></a>
<FONT color="green">313</FONT>      }<a name="line.313"></a>
<FONT color="green">314</FONT>      <a name="line.314"></a>
<FONT color="green">315</FONT>    }<a name="line.315"></a>
<FONT color="green">316</FONT>          <a name="line.316"></a>




























































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